Cisco ONS 15454 Hardware Installation Manual page 472

NTP-G262 Replace the Air Filter of the ONS 15454 M6 Shelf Assembly
Note The air filters are single-use only. They must not be cleaned and reused. This is a Telcordia NEBS requirement,
GR-63-CORE Issue 4.
Note Air filters must be inspected every month. If they are dirty or clogged with dust, they must be replaced with
a new air filter.
Procedure
Step 1
Open the front door of the shelf assembly (see
15454 M6 Shelf , on page
Step 2 (Optional) Complete the
remove the front door. If you do not want to remove the door, proceed to Step 3.
Step 3 Push the retention feature present on the right side of the shelf assembly to the left side (see the following
figure).
Figure 292: Replacing the Air Filter
Step 4
Extract the air filter from the shelf assembly (see the following figure).
Cisco ONS 15454 Hardware Installation Guide
442
Maintaining the ONS 15454 M12 (ANSI and ETSI), ONS 15454 M2 and ONS 15454 M6 Shelf
NTP-G259 Open and Remove the Standard Door of the ONS
327). If the shelf assembly does not have a front door, continue with Step 3.
DLP-G577 Remove the Standard Door of the ONS 15454 M6 Shelf , on page 330 to